Base for hot-air furnaces and hot-water and steam-boilers.



S. AIKINS. BASE FOR HOT AIR FURNACES AND HOT WATER AND STEAM BOILERS.

AFPUCATION FILED MAR. 20, 19l6- 1,21 8,824.. Patented Mar. 13, 1917. R I 2 SHEETSSHEET lb] ITN 555 E5 IR W EIHMUELHIKINE j WW2 BY FITT'Y.

I s. AIKINS. BASE FOR HOT AIR FURNACES AND HOT WATER AND STEAM BOILERS.

APPLICATION FILED MAR. 20, 1916- Patented Mar. 13, 1917.

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I 24 1; 7 16 '20 W a 241 f! 15 Z0 29 I I if N 22 1B Y I 1 .Y h \f .17 ?14 1 1.7 l 17 E:1: E EI Q .L'ITNESEEE INUENTUFI SHMUEL HIKINS inn srarns rarnnr rrion- SAMUEL AIKINS, OF WESTON, ONTARIO, CANADA, ASSIGNOR, OF ONE-HALF T0 ACHILLE A, PINARD, OF OTTAWA, ONTARIO, CANADA.

BASE FOR HOT-AIR FURNACES AND HOT-WATER AND STEAM BOILERS.

Specification of Letters Patent.

Patented Mar. 13, 191?.

Application filed March 20, 1916. Seria1No.,85,382.

To all whom it may concern:

it known that. I, SAMUEL AIKINS, a citizen of the Dominion of Canada, residing at Weston, inthe county of York and Province of Ontario, Canada, have invented certain new and useful improvements in Bases for Hot-Air Furnaces and Hot-Water and Steam Boilers, of which the following is a specification. I

This invention relates to furnace bases and is so designed as to be readily adapted to fit under any of the standard makes of hot air furnaces, circular hot water and steam boilers.

In the present invention 1 show three distinct features: first, a combustion chamber without any grates on which to hold the coal or other fuel, second, a lower cold air receiving chamber around. on the outer side of the combustion chamber to pre-heat the air which is drawn from the house before entering the combustion chamber, third, an upper humidifying chamber over the cold air receiving chamber, and having automatically controlled supply pipes, with funnel-shaped tops to provide for exposing extended surfaces of water over which the air passes.

The object of my invention is to provide a base-which will aid in .combustion, add

greater humidity to the heated air passing from the furnace and at the same time do away with, all grates in the combustion chamber.

With this and other objects in view, the invention consists in the construction, combination and arrangementof parts as will be hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereuntoappended.

In the drawing: 7

Figure 1 shows a perspeCtive view of my invention, partly broken away.

Fig. 2 shows .a plan view with the top removed. 1

Fig. 3 shows a sectional viewon line 33 of Fig. 2.

Fig. -i shows a sectional view on line 44 of Fig. 2.

Similar reference charactersindicate corresponding parts throughout the several views in the drawing.

5 designates an outer cylindrical wall havinga fiatbottom 6. 7 These ,are preferably formed of steel sheeting. 7 and 8 are doors closingopenings in the outer wall 5. These doors are opposite each other and situated with their bottom even with the bottom of the combustion, chamber hereinafter mentioned. These doors are for removing ashes.- 9 is an inner cylindrical wall, which is lined with two rows of fire bricks 10 and 11, the bricks being on their ends. Between the rows of bricks 10 and 11, I provide metal or brick arched members 12 providing openings 13. The wall 9 hassemi-circular openingsl l registering with openings 13. Opposite door is an opening 15 through the wall 9 and fire-bricks 11 and a similar opening 16 is opposite door 8.

The space between the outer Wall 5 and the inner wall 9 is divided into two chambers 17 and 18 by a diaphragm 1 9 which is held in position by means of riveting to the walls 5 and 9. A plate 20 covers the top of thechamber 18. The chambers 17 andlS will be air-tight, but fortheintake pipe and exhaust pipe, which will hereinafter be explained.

The chamber 17 is called a cold air receiving chamber and has an intake pipe 21 entering through the wall 5 near the. bottom. This .pipe21 can ,be suitably connected to piping connecting with a room of the house to draw ofi the cold air into. the chamber 17. where it gets pre-heated before going through the openings 1% and 13 into the combustion chamber.

Coal takes from 200 to..300 cubic feet of air to each pound of coal consumed for proper combustion. In the ordinary furnaces the cold air from the house is drawninto the combustion chamber and when it strikes the live coals lt deadens them but in my invention, 1 provide a pro-heating The chamber 18 is,,called a humidifying chamber and has an intake pipe 22 entering through the wall 5 just above the diaphragm 19. Another pipe23enters through the wall 5 near thetop of chamber 18. Pipe 23 isan exhaust pipe.

24; is an annularpiping having. a, closure cap 25 screwed on one end. The other end screws into an elbow 26, having a connection 27 through the wall 5, which connects to a controller 28. The annular piping 24 has upwardly extending pipes 29 screwed in its upper side. Pipes 29 have funnelshaped upper ends 29 and as these pipes hold water, it will be seen that the funnelshaped top allows a larger expanse of water to come in contact with the air in chamber 18. The controller :28 has a water feed supply pipe 30 connected to it. having cock 31 thereon. is an ordinary shut-0E valve which controls the intake of the water from supply pipe 30, so that the height of the water in the container 33 will'stay at a level slightly lower than the top of the upper funnel-shaped ends of the pipes 29. 40 is an over-flow pipe, which extends up into the container 33. The top of this over-flow pipe 40 is slightly below the tops of the pipes 29. If the shut-off valve 32 should not work, the water will over-flow through pipe 40 instead of going into the humidifying chamber and overflowing from pipes 29.

The pipe 22 extends through the cellar wall and draws pure, fresh, cold air from outside into the chamber 18 where it is brought to a temperate heat and the water in the pipes 29 humidifies this air before it passes off through exhaust pipe 23 to be distributed through the house.

In most furnaces there is a water pan which is manually filled with water. The inner end of the pan extends into furnaces to come in contact with the live heat and the humidity of the heated air is much denser than it should be. The water is soon all taken up and then the air passes through the furnace without being humidified. This shows the two extremes that are constantly found with the ordinary manually filled water pan. With my invention relating to humidifying the air, I bring the pure, fresh, cold air from the outside atmosphere, which will not be readily heated to an extreme heat in the chamber 18 before passing off through the house. In this temperate heat it takes up a moderate amount of moisture and as the water supply is automatically controlled this humidifying is constantly going on, and thus the air in the house is kept at the same humidity. The greater the heat the greater the velocity of the air in chamber 18, thus it will be seen that my invention keeps the humidity the same even with the change of heat in the combustion chamber. This is a very important part of this invention as it will be found much more healthy for living.

There is no grate, but the fuel lies on the fire brick bottom 35 shown in Fig. 2.

The container 33 is preferably an ordinary glass fruit jar and by standardizing this container in this way if it gets broken,

there is generally another around the house to put on or one can be had at the corner store.

From the foregoing it is thought that the construction of my invention will be clearly understood, and therefore a more extended explanation has been omitted.

hat I claim as new, is,

1. A furnace base, consisting of a combustion chamber, a cylindrical outer wall spaced from the wall of said combustion chamber, the space between said combustion chamber and said cylindrical wall being divided into two separate chambers by a diaphragm, the lower chamber being provided with an air inlet pipe, said combustion chamber being provided with openings communicating with the space between said combustion chamber and said cylindrical wall, the upper chamber being provided with an air intake pipe and an air exhaust pipe, a water pipe in said upper chamber bent to form a segment of a ring and having a screw cap closure at one end and the other end extending out through said cylindrical wall, an automatic control at the extended end of said pipe, said control consisting of a container screwed to its base and having a shut-off valve inside with water connection to said valve, and an over-flow pipe, said bent water pipe having upwardly extending branch pipes with their upper ends funnel shaped, and oppositely situated doors opening into said combustion chamber.

2. 'A furnace base, consisting of a combustion chamber, a cylindrical outer wall spaced from the wall of said combustion chamber, the space between said wall and said combustion chamber being divided by a diaphragm, said combustion chamber being provided with openings communicating with the space between said outer wall and said combustion chamber, an air intake pipe opening into the lower portion of said space and an air intake pipe and an air ex haust pipe connected with the upper portion of said space, said upper portion of said space having a bent piping therein, one end of said piping extending out through said outer wall, said piping having upwardly ex tending branches with funnel shaped upper ends and located in said upper air space.

3. A furnace base, consisting of a combustion chamber, a cylindrical wall spaced from the wall of said combustion chamber having a brick facing on its inner side, the wall of said combustion chamber having openings therearound and corresponding openings through said brick facing, the

space between said outer wall and said .com-

bustion chamber being divided into two sections by a diaphragm, said diaphragm being above said openings, an inlet air pipe in said lower section and an inlet air pipe and an exhaust air pipe in said upper section, said outer wall having a set of openings and doors arranged opposite to each other, said combustion chamber having corresponding openings opposite said openings in said outer wall, said upper section having a humidifying means consisting of a bent piping around above said diaphragm with one end capped and the other end extending out through said outer Wall and carrying an automatic shut-01f thereon with suitable water supply means thereto, and said piping having upwardly extending branch pipings with funnel shaped upper ends.

i. A furnace base, consisting of. an outer wall, and an inner cylindrical Wall having a brick facing said inner wall forming the side of a combustion chamber, said Walls being spaced apart, said cylindrical Wall and said brick facing having alining openings, the space between said outer Wall and said inner wall being divided into tWo sections, the lower section having an air intake pipe adapted to connect with a suitable room in the house, the upper chamber being provided with a humidifying means, an intake pipe in communication With the atmosphere and connecting to said upper section, an exhaust pipe from said upper section adapted to leadto main parts of the house, a humidifying means in said upper section and oppositely situated doors in said combustion chamber.

Signed at Weston, this 26 day of February, 1916.

In testimony whereof I hereunto atfix my signature.

SAMUEL AIKINS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

